X-Git-Url: https://hackdaworld.org/gitweb/?p=hdw-linux%2Fhdw-linux.git;a=blobdiff_plain;f=scripts%2FConfig;h=042664c609ffe77c8921025f03094115758fbbdc;hp=b059d612d72e793721f2b3aab2a86043bb1e80bd;hb=8dd2356c22327a15f0e16abbc887c4f72fc62985;hpb=6590bcd1cecd29b92b821a0663de431a01410786

diff --git a/scripts/Config b/scripts/Config
index b059d61..042664c 100755
--- a/scripts/Config
+++ b/scripts/Config
@@ -1,26 +1,27 @@
 #
 # hdw-linux Config script
 #
-# author: 	hackbard
+# author: hackbard@hackdaworld.org
 #
 # script initializing environment
 # 
 
-hdw_status=""
+stage=""
 
 while [ "$1" ] ; do
 	case "$1" in
-		-stage)		hdw_status="$2"		; shift 2 ;;
+		-stage)		stage="$2"		; shift 2 ;;
 		*)		echo 
 				echo "Usage:"
 				echo
 				echo " ./scripts/Config -stage <stagelevel>"
-				echo ;;
+				echo
+				shift 1 ; exit 1 ;;
 	esac
 done
 
-if [ -z "$hdw_status" ]; then
-	echo "something went wrong. stage needs to be specified."
+if [ -z "$stage" ]; then
+	echo "something went wrong, no stage specified."
 	exit 1
 fi
 
@@ -39,17 +40,14 @@ else
 	exit 1
 fi
 
-# define the stage 0/1 prefix to use
-# default "static", though no static linking is done anymore in stage1
-if [ -z "$hdw_stage1_prefix" ] ; then
-	 s1_prefix="static" # default
-else
-	s1_prefix=$hdw_stage1_prefix
-fi
+# define the toolchain name, default: "toolchain"
+[ -z "$hdw_tc_name" ] && hdw_tc_name="toolchain"
+export tc_name=$hdw_tc_name
 
 # lets see what root is:
-[ "$hdw_status" = "2" -o "$hdw_status" = "3" ] && root=""
-if [ "$hdw_status" -lt 2 -o "$hdw_crossbuild" != "0" ] ; then
+root=""
+if [ "$hdw_crossbuild" != "0" -o "$stage" -lt "2" ] ; then
+	# check for properly configured build directory
 	if [ -z "$hdw_build_dir" ] ; then
 		echo "please set hdw_build_dir in ./Config!"
 		exit 1
@@ -66,18 +64,36 @@ fi
 set +h
 umask 022
 export LC_ALL=POSIX
-[ "$hdw_status" -lt "2" ] && export PATH="$root/${s1_prefix}/bin:$PATH"
+if [ "$stage" -lt "2" -a "$hdw_crossbuild" = "0" ] ; then
+	export PATH="/${tc_name}/bin:/${tc_name}/sbin:$PATH"
+elif [ "$hdw_crossbuild" != "0" ] ; then
+	export PATH="$root/${tc_name}/bin:$root/${tc_name}/sbin:$PATH"
+fi
 
 # let's do optimization and care for crossbuilds
-if [ ! -z "`uname --version | grep sh-utils`" ] ; then
+#
+# as gnu autoconf terminology has been confusing me again and again,
+# there are a few comments following ;)
+#
+# ref: gcc docs - hardware models and configurations
+#      @ http://gcc.gnu.org/onlinedocs/
+#
+
+# --build: the system the actual executable is created on. uname will tell us.
+#          you may set hdw_real_build, or
+#          you may fake uname output using fake_utsname kernel module!
+if [ -n "`uname --version | grep sh-utils`" ] ; then
 	hdw_arch_build="`uname -m -p | tr " " -`-linux-gnu"
 else
 	hdw_arch_build="`uname -m`-unknown-linux-gnu"
 fi
+[ -n "$hdw_real_build" ] && hdw_arch_build="${hdw_real_build}-unknown-linux-gnu"
+
+# --target: the system for which the executable is going to produce code.
 case "$hdw_arch" in
 	ia32) 	if [ -z "$hdw_arch_opt" ] ; then
 			hdw_arch_target="i386-pc-linux-gnu"
-		elif [ ! -z "$hdw_arch_opt" ] ; then
+		else
 			hdw_arch_target="${hdw_arch_opt}-pc-linux-gnu"
 			hdw_cflags="-march=${hdw_arch_opt}"
 		fi
@@ -85,43 +101,61 @@ case "$hdw_arch" in
 	sparc*)	if [ -z "$hdw_arch_opt" ] ; then
 			hdw_arch_target="$hdw_arch-unknown-linux-gnu"
 		else
-			# hack this! :)
-			echo "pls hack sparc* opt. options and submit :)"
-			echo "no optimization used!"
 			hdw_arch_target="$hdw_arch-unknown-linux-gnu"
 			hdw_cflags="-march={hdw_arch_opt}"
 		fi ;;
 	ppc)
 		hdw_arch_target="powerpc-unknown-linux-gnu"
-		[ ! -z "$hdw_arch_opt" ] && hdw_cflags="-march=${hdw_arch_opt}"
+		if [ -z "$hdw_arch_opt" ] ; then
+			hdw_cflags="-mcpu=common"
+		else
+			hdw_cflags="-mcpu=${hdw_arch_opt}"
+		fi
 		hdw_arch_build=${hdw_arch_build//ppc/powerpc} ;;
-	*)      echo "not supported yet"
+	ppc64)
+		hdw_arch_target="powerpc64-unknown-linux-gnu"
+		if [ -z "$hdw_arch_opt" ] ; then
+			hdw_cflags="-mcpu=common"
+		else
+			hdw_cflags="-mcpu=${hdw_arch_opt}"
+		fi
+		hdw_arch_build=${hdw_arch_build//ppc64/powerpc64} ;;
+	mips)	hdw_arch_target="mips-unknown-linux-gnu"
+		if [ -z "$hdw_arch_opt" ] ; then
+			echo "info: no optimization set"
+		else
+			hdw_cflags="-march=${hdw_arch_opt}"
+		fi ;;
+	*)      echo "$hdw_arch_target not supported yet"
 		echo "please choose a valid optimization and build platform."
 		exit 1 ;;
 esac
+
+# --host: system where the created executable runs on.
+hdw_arch_host=${hdw_arch_build}
+[ "$stage" != "0" -a "$hdw_crossbuild" = "0" ] && \
+	hdw_arch_host=${hdw_arch_target}
+
 # -O flag
-[ ! -z "$hdw_opt" ] && hdw_cflags="-O${hdw_opt} $hdw_cflags"
+# optimization only at stages >= 1
+if [ -n "$hdw_opt" -a "$stage" != "0" ] ; then
+	hdw_cflags="-O${hdw_opt} $hdw_cflags"
+else
+	unset hdw_cflags
+fi
 
 # build tools to use
 hdw_arch_prefix=""
-if [ "$hdw_crossbuild" != "0" ] ; then
-	hdw_arch_prefix="$hdw_arch_target-"
-	if [ "$hdw_real_build" ] ; then
-		if [ "$hdw_arch" = "ia32" ] ; then
-		hdw_arch_build=${hdw_arch_build//$hdw_arch_opt/$hdw_real_build}
-		else
-		hdw_arch_build=${hdw_arch_build//$hdw_arch/$hdw_real_build}
-		fi
-	fi
-fi
-# test: actually we always use the compilers for target
-# hdw_arch_prefix="$hdw_arch_target-"
+[ "$stage" != "0" ] && hdw_arch_prefix="$hdw_arch_target-"
 
-# resume ...
+# print decissions for debugging ...
+echo "root variable set to '$root'"
 echo "hdw_arch_target variable set to $hdw_arch_target"
 echo "hdw_arch_build variable set to $hdw_arch_build"
-echo "hdw_cflags variable set to $hdw_cflags"
-[ "$hdw_status" = "1" ] && echo "hdw_stage1_prefix set to '$s1_prefix'"
+echo "hdw_arch_host variable set to $hdw_arch_host"
+echo "hdw_arch_prefix variable set to '$hdw_arch_prefix'"
+echo "hdw_cflags variable set to '$hdw_cflags'"
+echo "hdw_tc_name set to '$hdw_tc_name'"
 
 # lets see what we are going to build
 if [ -z $hdw_target ] ; then